class_docstr: Class representing series of numeric values.
code: def allowed_dtypes(cls) -> Union[str, Tuple[str, ...]]:
      # TODO remove 'float64': temporary fix for repos generated with aim < 3.0.7
      return "float", "float64", "int", "number"
  
file_path: aim/aim/sdk/sequences/metric.py
imports: import datetime
  import json
  from aim.sdk.sequence import Sequence
  from aim.storage import treeutils
  from typing import Union, Tuple
  from typing import TYPE_CHECKING
label_desc: Use image node_id 1 for calling the Metric obj's underlying member method code with example usage: obj.allowed_dtypes(cls) and returns: str,  str,  str,  str